{"id":184488,"date":"2024-11-10T13:38:20","date_gmt":"2024-11-10T05:38:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/184488\/"},"modified":"2024-11-10T13:38:21","modified_gmt":"2024-11-10T05:38:21","slug":"%e4%bd%bf%e7%94%a8redis%e6%8a%80%e8%a1%93%e5%b1%95%e9%96%8b%e9%99%90%e6%b5%81%e6%8e%aa%e6%96%bd%ef%bc%88%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%99%90%e6%b5%81%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/184488\/","title":{"rendered":"\u4f7f\u7528Redis\u6280\u8853\u5c55\u958b\u9650\u6d41\u63aa\u65bd\uff08\u4f7f\u7528redis\u5be6\u73fe\u9650\u6d41\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e6%8a%80%e8%a1%93%e5%b1%95%e9%96%8b%e9%99%90%e6%b5%81%e6%8e%aa%e6%96%bd%ef%bc%88%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%99%90%e6%b5%81%ef%bc%89-MIDjitnhLL\">\u4f7f\u7528Redis\u6280\u8853\u5c55\u958b\u9650\u6d41\u63aa\u65bd\uff08\u4f7f\u7528Redis\u5be6\u73fe\u9650\u6d41\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u9650\u6d41\u6280\u8853\u6210\u70ba\u4e86\u4fdd\u8b77\u61c9\u7528\u7a0b\u5e8f\u548c\u670d\u52d9\u7684\u91cd\u8981\u624b\u6bb5\u3002\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u8acb\u6c42\u6d41\u91cf\uff0c\u9632\u6b62\u670d\u52d9\u904e\u8f09\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u4e86\u5be6\u73fe\u9650\u6d41\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%99%90%e6%b5%81%ef%bc%9f-MIDjitnhLL\">\u4ec0\u9ebc\u662f\u9650\u6d41\uff1f<\/h2>\n<p>\u9650\u6d41\u662f\u6307\u5c0d\u7cfb\u7d71\u7684\u8acb\u6c42\u9032\u884c\u63a7\u5236\uff0c\u4ee5\u9632\u6b62\u904e\u591a\u7684\u8acb\u6c42\u540c\u6642\u5230\u9054\u7cfb\u7d71\uff0c\u5f9e\u800c\u5c0e\u81f4\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\u6216\u5d29\u6f70\u3002\u9650\u6d41\u53ef\u4ee5\u6839\u64da\u6642\u9593\u7a97\u53e3\u3001\u7528\u6236\u8eab\u4efd\u3001IP\u5730\u5740\u7b49\u591a\u7a2e\u689d\u4ef6\u9032\u884c\u8a2d\u7f6e\u3002\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41\uff1a\u5728\u56fa\u5b9a\u7684\u6642\u9593\u7a97\u53e3\u5167\u9650\u5236\u8acb\u6c42\u6578\u91cf\u3002<\/li>\n<li>\u6ed1\u52d5\u7a97\u53e3\u9650\u6d41\uff1a\u6839\u64da\u6700\u8fd1\u4e00\u6bb5\u6642\u9593\u5167\u7684\u8acb\u6c42\u6578\u91cf\u9032\u884c\u9650\u5236\u3002<\/li>\n<li>\u4ee4\u724c\u6876\u7b97\u6cd5\uff1a\u901a\u904e\u4ee4\u724c\u7684\u65b9\u5f0f\u63a7\u5236\u8acb\u6c42\u7684\u9032\u5165\u3002<\/li>\n<li>\u6f0f\u6876\u7b97\u6cd5\uff1a\u4ee5\u56fa\u5b9a\u7684\u901f\u7387\u8655\u7406\u8acb\u6c42\uff0c\u8d85\u904e\u7684\u8acb\u6c42\u5c07\u88ab\u4e1f\u68c4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87redis%ef%bc%9f-MIDjitnhLL\">\u70ba\u4ec0\u9ebc\u9078\u64c7Redis\uff1f<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u512a\u52e2\uff0c\u4f7f\u5176\u6210\u70ba\u5be6\u73fe\u9650\u6d41\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u7684\u8b80\u5beb\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u80fd\u5920\u652f\u6301\u6bcf\u79d2\u6578\u5341\u842c\u6b21\u7684\u8acb\u6c42\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>Redis\u652f\u6301\u6578\u64da\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5728\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u80fd\u5920\u9748\u6d3b\u61c9\u7528\u65bc\u4e0d\u540c\u7684\u9650\u6d41\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%99%90%e6%b5%81%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-MIDjitnhLL\">\u4f7f\u7528Redis\u5be6\u73fe\u9650\u6d41\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u9650\u6d41\u7684\u57fa\u672c\u6b65\u9a5f\uff0c\u4ee5\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41\u70ba\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e9%99%90%e6%b5%81%e5%8f%83%e6%95%b8-MIDjitnhLL\">1. \u8a2d\u7f6e\u9650\u6d41\u53c3\u6578<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u5b9a\u7fa9\u9650\u6d41\u7684\u53c3\u6578\uff0c\u4f8b\u5982\u6bcf\u500b\u7528\u6236\u6bcf\u5206\u9418\u6700\u591a\u53ef\u4ee5\u767c\u9001\u7684\u8acb\u6c42\u6578\u91cf\uff1a<\/p>\n<pre><code>const LIMIT = 100; \/\/ \u6bcf\u5206\u9418\u6700\u591a\u8acb\u6c42\u6578\nconst WINDOW_SIZE = 60; \/\/ \u7a97\u53e3\u5927\u5c0f\uff08\u79d2\uff09\n<\/code><\/pre>\n<h3 id=\"2-%e5%af%a6%e7%8f%be%e9%99%90%e6%b5%81%e9%82%8f%e8%bc%af-MIDjitnhLL\">2. \u5be6\u73fe\u9650\u6d41\u908f\u8f2f<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f7f\u7528Redis\u7684`INCR`\u547d\u4ee4\u4f86\u8a08\u7b97\u8acb\u6c42\u6578\u91cf\uff0c\u4e26\u4f7f\u7528`EXPIRE`\u547d\u4ee4\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>\nfunction isRateLimited(userId) {\n    const currentCount = redis.incr(userId);\n    if (currentCount === 1) {\n        redis.expire(userId, WINDOW_SIZE);\n    }\n    return currentCount &gt; LIMIT;\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u7576\u7528\u6236\u767c\u9001\u8acb\u6c42\u6642\uff0c`isRateLimited`\u51fd\u6578\u6703\u6aa2\u67e5\u8a72\u7528\u6236\u7684\u8acb\u6c42\u6578\u91cf\u3002\u5982\u679c\u8acb\u6c42\u6578\u91cf\u8d85\u904e\u4e86\u9650\u5236\uff0c\u5247\u8fd4\u56de`true`\uff0c\u8868\u793a\u8a72\u7528\u6236\u88ab\u9650\u6d41\u3002<\/p>\n<h3 id=\"3-%e8%99%95%e7%90%86%e9%99%90%e6%b5%81%e8%ab%8b%e6%b1%82-MIDjitnhLL\">3. \u8655\u7406\u9650\u6d41\u8acb\u6c42<\/h3>\n<p>\u6700\u5f8c\uff0c\u5728\u8655\u7406\u8acb\u6c42\u7684\u908f\u8f2f\u4e2d\uff0c\u6839\u64da`isRateLimited`\u7684\u8fd4\u56de\u503c\u4f86\u6c7a\u5b9a\u662f\u5426\u5141\u8a31\u8acb\u6c42\uff1a<\/p>\n<pre><code>\nif (isRateLimited(userId)) {\n    return \"Too many requests, please try again later.\";\n} else {\n    \/\/ \u8655\u7406\u8acb\u6c42\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-MIDjitnhLL\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u5be6\u73fe\u9650\u6d41\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6709\u6548\u5730\u4fdd\u8b77\u7cfb\u7d71\u514d\u53d7\u904e\u8f09\u5f71\u97ff\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u9650\u6d41\u53c3\u6578\u548c\u4f7f\u7528Redis\u7684\u9ad8\u6027\u80fd\u7279\u6027\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u8acb\u6c42\u6d41\u91cf\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u9032\u4e00\u6b65\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u6280\u8853\u5be6\u73fe\u9ad8\u6548\u7684\u9650\u6d41\u63aa\u65bd\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u8cc7\u6e90\u5408\u7406\u5206\u914d\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-184488","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=184488"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184488\/revisions"}],"predecessor-version":[{"id":184489,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184488\/revisions\/184489"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=184488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=184488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=184488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}